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XRT59L921IB View Datasheet(PDF) - Exar Corporation

Part Name
Description
MFG CO.
XRT59L921IB
Exar
Exar Corporation Exar
'XRT59L921IB' PDF : 32 Pages View PDF
REV. 1.2.1
APPLICATION INFORMATION
XRT59L921
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
Figure 17 and Figure 18, provide example schematics on how to interface Channel 1 of the XRT59L921 to the
line, under the following conditions.
Receiver is Transformer-coupled to a 75unbalanced line.
Receiver is Transformer-coupled to a 120balanced line.
FIGURE 17. ILLUSTRATION ON HOW TO INTERFACE CHANNEL 1 (OF THE XRT59L921) TO THE LINE (RECEIVER IS
TRANSFORMER-COUPLED TO A 75UNBALANCED LINE)
XRT59L921
TTIP_x
TxPOS_x
TxPOS_x
9.1
1:2
TxNEG_x
TxNEG_x
TxLineClk_x
TxLineClk_x
TRING_x
9.1
RxPOS_x
RxNEG_x
Loss Of Signal_x
RxPOS_x
RTIP_x
RxNEG_x
RxLOS_x
RRING_x
1:1
75
27
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